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Oral Health Assessment by Lay Personnel for Older Adults
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Using the WHOQOL-BREF in persons with dementia: a validation study.

Ramona Lucas-Carrasco1, Suzanne M Skevington, Juana Gómez-Benito

  • 1CRE Alzheimer, Salamanca, Spain. Lucas.Ramona@gmail.com

Alzheimer Disease and Associated Disorders
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Summary

Persons with early dementia can reliably assess their own quality of life (QOL). The World Health Organization Quality of Life (WHOQOL-BREF) is a valid tool for assessing QOL in dementia patients.

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Area of Science:

  • Geriatric medicine
  • Psychometrics
  • Quality of Life research

Background:

  • Self-assessment of quality of life (QOL) in early dementia is increasingly recognized as valid.
  • Proxy reports may lack accuracy and are often needed.
  • The World Health Organization Quality of Life (WHOQOL-BREF) is a new tool for QOL assessment.

Purpose of the Study:

  • To examine QOL in individuals with dementia using subjective assessments.
  • To evaluate the reliability and validity of the WHOQOL-BREF in this population.
  • To compare WHOQOL-BREF with other QOL and functional measures.

Main Methods:

  • 104 individuals with mild-to-moderate dementia were recruited across 6 Spanish centers.
  • A battery of subjective assessments was administered, including the WHOQOL-BREF, DEMQOL-28, Geriatric Depression Scale (15-item), and Barthel Index.
  • Classical psychometric methods were used for analysis.

Main Results:

  • The WHOQOL-BREF demonstrated moderate to good internal consistency and test-retest reliability across its domains.
  • Significant associations were found between WHOQOL-BREF domains and other measures (DEMQOL-28, Geriatric Depression Scale, Barthel Index).
  • WHOQOL-BREF scores effectively differentiated between healthy/unhealthy and depressed/non-depressed participants.

Conclusions:

  • The WHOQOL-BREF is a reliable and valid instrument for assessing QOL in individuals with mild-to-moderate dementia.
  • This study is the first to report on the WHOQOL-BREF's utility in this population.
  • The WHOQOL-BREF captures important QOL dimensions often missed by other dementia-specific measures.